CN102562481A - Speed increasing device and wind generating set - Google Patents
Speed increasing device and wind generating set Download PDFInfo
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- CN102562481A CN102562481A CN201110424972XA CN201110424972A CN102562481A CN 102562481 A CN102562481 A CN 102562481A CN 201110424972X A CN201110424972X A CN 201110424972XA CN 201110424972 A CN201110424972 A CN 201110424972A CN 102562481 A CN102562481 A CN 102562481A
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- 230000007246 mechanism Effects 0.000 claims abstract description 33
- 238000013461 design Methods 0.000 abstract description 16
- 238000012545 processing Methods 0.000 abstract description 8
- 239000003921 oil Substances 0.000 description 109
- 239000000945 filler Substances 0.000 description 10
- 238000005461 lubrication Methods 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 9
- 238000009826 distribution Methods 0.000 description 8
- 230000008878 coupling Effects 0.000 description 7
- 238000010168 coupling process Methods 0.000 description 7
- 238000005859 coupling reaction Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 239000002828 fuel tank Substances 0.000 description 6
- 239000010720 hydraulic oil Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000000314 lubricant Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
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- 230000001050 lubricating effect Effects 0.000 description 3
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- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
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- 239000000428 dust Substances 0.000 description 2
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- 239000010687 lubricating oil Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
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- 238000012827 research and development Methods 0.000 description 2
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- 238000010276 construction Methods 0.000 description 1
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- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000541 pulsatile effect Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
本发明公开了一种用于风力发电机组的增速装置，包括增速齿轮机构，所述增速齿轮机构的输入轴连接所述风力发电机组的风轮输出轴，包括至少一个液压增速单元，所述液压增速单元包括液压泵(1)和液压马达(2)，所述液压泵(1)的输入轴与所述风力发电机组的风轮的输出轴连接，所述液压泵(1)的进油口连通油箱，其出油口与所述液压马达(2)的进油口连通，所述液压马达(2)的出油口连通油箱，所述液压马达(2)的输出轴与其相匹配的发电机的输入轴连接；该增速装置通用性比较高，结构设计简单、加工装配容易，且故障率低，工作效率比较高。此外，本发明还提供了一种包括上述增速装置的风力发电机组。
The invention discloses a speed-up device for a wind power generating set, which comprises a speed-up gear mechanism, the input shaft of the speed-up gear mechanism is connected to the wind wheel output shaft of the wind power generating set, and includes at least one hydraulic speed-up unit , the hydraulic speed increasing unit comprises a hydraulic pump (1) and a hydraulic motor (2), the input shaft of the hydraulic pump (1) is connected with the output shaft of the wind wheel of the wind power generating set, and the hydraulic pump (1 ) is connected to the oil tank, its oil outlet is connected to the oil inlet of the hydraulic motor (2), the oil outlet of the hydraulic motor (2) is connected to the oil tank, and the output shaft of the hydraulic motor (2) It is connected with the input shaft of the matching generator; the speed increasing device has high versatility, simple structure design, easy processing and assembly, low failure rate and high working efficiency. In addition, the present invention also provides a wind power generating set comprising the above speed increasing device.
Description
Technical field
The present invention relates to technical field of wind power generation, particularly a kind of gear box device that is used for wind power generating set.In addition, the invention still further relates to a kind of wind power generating set that comprises the said gear case apparatus.
Background technique
Along with the fast development of economic construction, wind energy as a kind of new energy more and more widely be applied to power field by countries in the world.
Wind power generating set generally comprises wind wheel, speeder and generator, and wind wheel is the vitals that the kinetic energy of wind is changed into mechanical energy, and its effect is that the kinetic energy with flow air is converted into rotating mechanical energy.
Please refer to Fig. 1, Fig. 1 is typical a kind of structural representation that is used for the speeder of wind power generating set in the existing technology.
The speeder of widespread usage is mainly the overdrive gear box structure in the existing technology; Speeder is generally positioned on the engine room foundation 1 '; It mainly comprises gear housing and is arranged at the gear drive 3 ' in the gear housing; The wind power transformation that gear drive 3 ' transmits the power wind wheel that comes with main shaft 2 ' is the effect that the transmission of power of higher rotation speed and low moment of torsion is given generator 5 ', and gear drive generally connects generator 5 ' through coupling 4 '.
According to the difference of the separate unit installed power of wind-driven generator, the also corresponding difference of the structure of gear drive 3 ', usually; Increase along with wind-driven generator separate unit installed power; The step-up gear volume constantly increases, and its structure is also corresponding to become increasingly complex, and design difficulty is also increasing.
In sum; The step-up gear versatility of wind power generating set is poor in the existing technology, and the structure more complicated, and cost is than higher; Especially for installed power than higher wind power generating set; The bigger human and material resources of design demand input ratio of step-up gear, and the design cycle is also long, and user cost is higher.
Therefore, how a kind of speeder that is used for wind power generating set is provided, versatility than higher, structural design is simple, processing and assembling is easy, and rate of fault is low, working efficiency is those skilled in the art's problem demanding prompt solutions than higher.
Summary of the invention
The object of the invention purport is that a kind of speeder that is used for wind power generating set is provided, this speeder versatility than higher, structural design is simple, processing and assembling is easy, and rate of fault is low, working efficiency is than higher.In addition, another object of the present invention aims to provide a kind of wind power generating set that comprises above-mentioned speeder.
For solving the problems of the technologies described above, a kind of speeder that is used for wind power generating set provided by the invention comprises overdrive gear mechanism; The input shaft of said overdrive gear mechanism connects the wind wheel output shaft of said wind power generating set; Comprise at least one hydraulic pressure speedup unit, said hydraulic pressure speedup unit comprises oil hydraulic pump and oil hydraulic motor, and the input shaft of said oil hydraulic pump is connected with the output shaft of the wind wheel of said wind power generating set; The filler opening of said oil hydraulic pump is communicated with fuel tank; Its oil outlet is communicated with the filler opening of said oil hydraulic motor, and the oil outlet of said oil hydraulic motor is communicated with fuel tank, and said hydraulic motor output shaft is connected with the input shaft of the generator that it is complementary.
Preferably; Said overdrive gear mechanism is a planetary mechanism; Said planetary mechanism comprises the ring gear that connects said gear housing, planet wheel, the planet carrier that at least one is meshed with said ring gear and the sun gear that is meshed with each said planet wheel; Said planet carrier connects said wind wheel output main shaft, and the main shaft of said sun gear connects the input shaft of said oil hydraulic pump.
Preferably, comprise two hydraulic pressure speedup unit at least, the input shaft of the oil hydraulic pump in each said hydraulic pressure speedup unit is same input shaft.
Preferably, the input shaft of said oil hydraulic pump is an eccentric shaft, and said eccentric shaft is provided with eccentric mass, and each said eccentric mass is positioned on the same vertical plane, and the central shaft interlaced arrangement of the said eccentric shaft in edge, and each said oil hydraulic pump is arranged on the corresponding said eccentric mass.
Preferably, also be nested with toggle on the said eccentric shaft, the left and right sides of said toggle connects two said oil hydraulic pumps respectively, and the cylinder body of the said oil hydraulic pump in both sides is fixed on the casing of said toggle or said speeder.Preferably, be provided with pressure adjustment relief valve between inner high-pressure chamber of said oil hydraulic pump and the low pressure cavity.
Preferably, the oil pipe of filler opening that is communicated with oil outlet and the said oil hydraulic motor of said oil hydraulic pump is provided with accumulator.
Preferably, the set inside of said oil hydraulic motor has the piston of at least two coaxial arrangement.
Preferably, said oil hydraulic motor is arranged on the shell of connected generator
For solving another technical problem; The present invention also provides a kind of wind power generating set; Comprise wind wheel, generator and be connected in said wind wheel and said generator between speeder, said gear box device is above-mentioned each described speeder that is used for wind power generating set.
A kind of speeder that is used for wind power generating set provided by the invention; Comprise overdrive gear mechanism, the input shaft of said overdrive gear mechanism connects the wind wheel output shaft of said wind power generating set, comprises at least one hydraulic pressure speedup unit; Said hydraulic pressure speedup unit comprises oil hydraulic pump and oil hydraulic motor; The input shaft of said oil hydraulic pump is connected with the output shaft of the wind wheel of said wind power generating set, and the filler opening of said oil hydraulic pump is communicated with fuel tank, and its oil outlet is communicated with the filler opening of said oil hydraulic motor; The oil outlet of said oil hydraulic motor is communicated with fuel tank, and said hydraulic motor output shaft is connected with the input shaft of the generator that it is complementary.
In sum; Speeder provided by the present invention has been realized the conversion between wind energy-mechanical energy-hydraulic pressure ability-mechanical energy-electric energy; Can adapt to the needs of different power wind power generating set through the quantity that increases or reduce hydraulic pressure speedup unit, realize the generalization of speeder in the different capacity wind power generating set, need not structure according to the power specialized designs speeder of wind power generating set; Compared with prior art; Simplify and reduced the design and the design difficulty thereof of speeder relatively, the reduction design cycle, reduced the research and development difficulty; And speeder processing, production and installation time have been saved; And then greatly reduce the user cost of speeder, and the overdrive gear mechanism in the speeder among the present invention can be converted into the mechanical energy of less moment of torsion, higher commentaries on classics degree than high pulling torque, more slow-revving power with what the transmission of wind wheel output shaft came, helps improving the working life of transformation efficiency and other coupling component of wind energy.
And; Be mutually independent between each hydraulic pressure speedup unit among the present invention in the speeder; When using in the process element in a certain hydraulic pressure speedup unit or the corresponding damage of components such as generator that are connected at that time with it; As long as the hydraulic pressure speedup unit that breaks down is closed, other the connected generator in hydraulic pressure speedup unit still can proper functioning, behind the generated energy of accomplishing wind field owner requirement or keep in repair behind the accessory arrival again and get final product; Use more flexibly, the working efficiency of wind power generating set is than higher.
Additionally, through the model and the quantity of oil hydraulic pump and oil hydraulic motor in the hydraulic pressure speedup unit rationally are set, power dividing that can easy to do realization high-power wind-driven generator group, and reliability is more intense.
Description of drawings
Fig. 1 is typical a kind of structural representation that is used for the speeder of wind power generating set in the existing technology;
A kind of structural representation that is used for the speeder of wind power generating set that Fig. 2 is provided for a kind of embodiment of the present invention;
Fig. 3 is the partial schematic sectional view of speeder shown in Figure 2;
Fig. 4 is the cross-sectional schematic of oil hydraulic motor in the speeder shown in Figure 2.
Wherein, the relation between reference character and the corresponding component names is following among Fig. 1:
Engine room foundation 1 '; Main shaft 2 '; Gear drive 3 '; Coupling 4 '; Generator 5 '.
Wherein, the relation between reference character and the corresponding component names is following among Fig. 2 to Fig. 4:
Oil hydraulic pump 1; Oil hydraulic pump cylinder body 11; Oil hydraulic pump piston 12; High-pressure chamber 13; Low pressure cavity 14; Oil hydraulic motor 2; Motor casing 21; Piston 22; Hydraulic motor output shaft 23; Generator 3; Casing 4; Planetary mechanism 5; Planet wheel 51; Sun gear 52; Planet carrier 53; Lubricating pipe 72; Flexible steel wire pipe 6; Lubricant pump 71; Eccentric shaft 8; Toggle 9; Distribution of lubrication oil ring 10; Hollow tubular 31; Bearing pin 33; Sealed member 32.
Embodiment
Core of the present invention aims to provide a kind of speeder that is used for wind power generating set, this speeder versatility than higher, structural design is simple, processing and assembling is easy, and rate of fault is low, working efficiency is than higher.In addition, another core of the present invention aims to provide a kind of wind power generating set that comprises above-mentioned speeder.
In order to make those skilled in the art understand technological scheme of the present invention better, the present invention is done further detailed description below in conjunction with accompanying drawing and specific embodiment.
Please refer to Fig. 2, a kind of structural representation that is used for the speeder of wind power generating set that Fig. 2 is provided for a kind of embodiment of the present invention.
In a kind of embodiment, a kind of speeder that is used for wind power generating set provided by the invention comprises overdrive gear mechanism; Overdrive gear mechanism can have gear housing; And being arranged at the gear drive in the gear housing, the input shaft of overdrive gear mechanism connects the wind wheel output shaft of said wind power generating set, usually; The output shaft of wind wheel connects main shaft; The input shaft of overdrive gear mechanism can be connected on the main shaft through modes such as interference connections, and the connection between the input shaft of realization overdrive gear mechanism and the output shaft of wind wheel is to reach the transmission of power.
The speeder of this wind power generating set comprises at least one hydraulic pressure speedup unit; Hydraulic pressure speedup unit comprises oil hydraulic pump 1 and oil hydraulic motor 2; The input shaft of oil hydraulic pump 1 is connected with the output shaft of the wind wheel of wind power generating set; The filler opening of oil hydraulic pump 1 is communicated with fuel tank, and its oil outlet is communicated with the filler opening of oil hydraulic motor 2, and the oil outlet of oil hydraulic motor 2 is communicated with fuel tank; Oil hydraulic pump 1 can be connected same hydraulic oil container with hydraulic pump motor 2, and the output shaft 23 of oil hydraulic motor 2 is connected with the input shaft of the generator 3 of its coupling.
Need to prove that above-mentioned coupling mainly refers to the coupling on oil hydraulic motor 2 and generator 3 power.
At first according to the generated output of wind power generating set; Speeder is formed in the hydraulic pressure speedup unit that suitable quantity is set; The output shaft of the hydraulic pump motor 2 in each hydraulic pressure speedup unit connects the generator 3 of corresponding power, and when this wind power generating set work, the wind wheel rotational power is transmitted to the input shaft of oil hydraulic pump 1 through overdrive gear mechanism; Under the rotary action of oil hydraulic pump 1 input shaft; Drive rotatable parts (impeller or the piston) rotation in the oil hydraulic pump 1, thus will with hydraulic oil in the hydraulic oil container that oil hydraulic pump 1 filler opening is communicated with certain pressure from the oil outlet pumping feed liquor press pump motor 2 of oil hydraulic pump 1, promote rotatable parts (impeller or the piston) rotation of hydraulic pump motor 2; Under the movement means of hydraulic pump motor 2; The output shaft of connected hydraulic pump motor 2 will rotate synchronously, thereby drive the rotation that is connected in corresponding generator 3 input shafts on hydraulic pump motor 2 output shafts, and generator 3 just can carry out normal power generation work.
In sum; Speeder provided by the present invention has been realized the conversion between wind energy-mechanical energy-hydraulic pressure ability-mechanical energy-electric energy; Can adapt to the needs of different power wind power generating set through the quantity that increases or reduce hydraulic pressure speedup unit, realize the generalization of speeder in the different capacity wind power generating set, need not structure according to the power specialized designs speeder of wind power generating set; Compared with prior art; Simplify and reduced the design and the design difficulty thereof of speeder relatively, the reduction design cycle, reduced the research and development difficulty; And speeder processing, production and installation time have been saved; And then greatly reduce the user cost of speeder, and the overdrive gear mechanism in the speeder among the present invention can be converted into the mechanical energy of less moment of torsion, higher rotation speed than high pulling torque, more slow-revving power with what the transmission of wind wheel output shaft came, helps improving the working life of transformation efficiency and other coupling component of wind energy.
And; Be mutually independent between each hydraulic pressure speedup unit among the present invention in the speeder; When using in the process element in a certain hydraulic pressure speedup unit or the corresponding damage of components such as generator 3 that are connected at that time with it; As long as the hydraulic pressure speedup unit that breaks down is closed, other the connected generator 3 in hydraulic pressure speedup unit still can proper functioning, behind the generated energy of accomplishing wind field owner requirement or keep in repair behind the accessory arrival again and get final product; Use more flexibly, the working efficiency of wind power generating set is than higher.
Additionally, through the model and the quantity of oil hydraulic pump in the hydraulic pressure speedup unit 1 and oil hydraulic motor 2 rationally are set, power dividing that can the high-power wind wheel of easy to do realization, and reliability is more intense.
To combine Fig. 3 below, Fig. 3 is the partial schematic sectional view of speeder shown in Figure 2, specifically introduces a kind of embodiment of speeder, and particular content is following.
A kind of preferred embodiment in, overdrive gear mechanism can be planetary mechanism 5, planetary mechanism 5 can be the NGW planetary mechanism, also can be NW planetary mechanism or differential attachment, the progression of planetary mechanism 5 can be one-level, also can be some levels.
Be without loss of generality, this paper introduces technological scheme of the present invention to use one-level NGW planetary mechanism and two-stage hydraulic pressure speedup unit as example.
Planetary mechanism 5 comprises the ring gear of connection gear casing, planet wheel 51, the planet carrier 53 that at least one is meshed with ring gear and the sun gear 52 that is meshed with each said planet wheel 51; Planet carrier 53 connects said wind wheel output main shaft; The main shaft of sun gear 52 connects the input shaft of said oil hydraulic pump, and both can connect through spline; NGW planetary mechanism volume ratio is less, weight is low weight, the convenient installation, and the transmission scope is big and can transmit heavy duty, and can realize the transmission of large speed ratio, transmission efficiency is than higher.
A kind of preferred embodiment in; At least comprise two hydraulic pressure speedup unit; The input shaft of the oil hydraulic pump 1 in each said hydraulic pressure speedup unit is same input shaft, and promptly the rotatable parts in each oil hydraulic pump 1 can be arranged on the same input shaft, and this structure can guarantee than higher transmission efficiency.
A kind of preferred embodiment in, the input shaft of oil hydraulic pump 1 is an eccentric shaft 8, eccentric shaft 8 is provided with eccentric mass; Eccentric mass is positioned on the same vertical plane, and along the central shaft interlaced arrangement of eccentric shaft 8, each oil hydraulic pump 1 is arranged on the corresponding eccentric mass; This set-up mode helps eccentric shaft 8 stress equalizations, and usually eccentric mass is typically designed to the even number number on the eccentric shaft 8, and eccentric position distributes relatively; Help more improving the stressed of eccentric shaft 8, improve its working life.
Further; Can also be nested with toggle 9 on the eccentric shaft 8; The left and right sides, toggle 9 ground connects ground, both sides oil hydraulic pump 1 respectively; The working oil chamber of oil hydraulic pump 1 generally comprises low pressure cavity 14 and high-pressure chamber 13, and both sides oil hydraulic pump cylinder body 11 is fixed on the casing 4 of toggle 9 or speeder, can use bearing pin 33 parts such as grade to fix.
It is big that hydraulic oil in the oil hydraulic pump 1 mesohigh cavity 13 acts on the power that acts on the cylinder body than the hydraulic oil in the low pressure cavity 14 on the cylinder body; And then the distortion of high-pressure chamber 13 side cylinder body ground is also just big more; And, can reduce the distortion of cylinder body greatly through the above-mentioned fixing mode of toggle 9 that is provided with.
Wherein, in conjunction with Fig. 2 and Fig. 3, the casing 4 of speeder can be processed as two-part, and the preceding casing 41 of protection overdrive gear mechanism and the rear box 42 of each oil hydraulic pump 1 assembly of protection make things convenient for the processing and the assembling of each component in the speeder.
In order to guarantee the normal use of parts such as above-mentioned oil hydraulic pump 1, oil hydraulic motor 2; Among above-mentioned each embodiment lubrication system can also be set; Comprise lubricating oil tank, lubricant pump 71, in the speeder oil leab can be set, lubricant pump 71 is given the speeder supplying lubricating oil through lubricating pipe 72.
A kind of preferred embodiment in; Can also be provided with distribution of lubrication oil ring 10 between toggle 9 and the eccentric shaft 8; Toggle 9 is provided with the oil duct of connection distribution of lubrication oil ring 10 and the passage of external lubrication pipeline 72, and when oil hydraulic pump 1 rotatable parts such as grade needed to lubricate through working long hours, lubricant oil can get into through the oil duct of toggle 9 with distribution of lubrication oil ring 10 compositions; Lubricated for all lubricating points in 1 group of the whole oil hydraulic pump is so that improve the working life of each component.
And; Distribution of lubrication oil ring 10 can also strengthen the rigidity of toggle 9 circumference; And distribution of lubrication oil ring 10 can also play the effect of sliding bearing; A bearing fulcrum formed in toggle 9, distribution of lubrication oil ring 10, makes stressed balanced more, the bending deflection that can reduce eccentric shaft 8 simultaneously of eccentric shaft 8.
Distribution of lubrication oil ring 10 can be synthetic jointly by toggle 9 and eccentric shaft 8, also can be separately set on the toggle 9, as long as can satisfy need of work.
Usually, receive the influence of environment, the rotating speed of wind wheel changes suddenly sometimes, and system is caused damage, and therefore, in order to reduce the influence of wind speed sudden change to the system zero parts, can take following set-up mode.
Can be provided with pressure adjustment relief valve between the high-pressure chamber 13 of oil hydraulic pump 1 inside and the low pressure cavity 14; When the wind speed sudden change increased, the rotating speed of the eccentric shaft 8 of high-pressure large-displacement oil hydraulic pump 1 raise, and the flow of oil hydraulic pump 1 increases; Constant basically for the rotating speed that guarantees generator 3, bring impact for generator 3; Pressure adjustment relief valve between high-pressure chamber 13 and the low pressure cavity 14 is opened, and a part of high pressure oil is back in the low pressure cavity 14, guarantees the working stability of each component; Improve working life, the concrete structure of pressure adjustment relief valve repeats no more at this.
In above-mentioned each mode of execution; The oil pipe of filler opening that is communicated with oil outlet and the oil hydraulic motor 2 of said oil hydraulic pump 1 can be flexible steel wire pipe 6; The strength ratio of flexible steel wire pipe 6 is higher; Working life is long, and does not receive the restriction of oil hydraulic pump 1 and oil hydraulic motor 2 positions, helps component and generator 3 positions in the flexible arrangement speeder.
A kind of preferred embodiment in; Can oil hydraulic motor 2 be arranged on the housing of coupled generator 3; Reduce occupying of spatial position; Vibrations when the compactness that helps structure, and both can connect through spline, joint can also be provided with elastic element and be used to reduce transmission of power.
Among above-mentioned each embodiment; The oil pipe of the oil outlet of connection oil hydraulic pump 1 and the filler opening of oil hydraulic motor 2 is provided with accumulator; Accumulator is set alleviates the pulsatile impact and the instantaneous influence that reduces parts such as oil hydraulic motors 2 of flow of oil hydraulic pump 1, guarantee the stability of generator 3 work.
Certainly, oil hydraulic pump 1 connects with the mode that also can adopt spline to add elastic element that is connected between the wind wheel output shaft.
Please refer to Fig. 4, Fig. 4 is the cross-sectional schematic of oil hydraulic motor in the speeder shown in Figure 2.
A kind of preferred embodiment in; The piston 22 that oil hydraulic motor 2 generally comprises motor casing 21 and is arranged at the inside of motor casing 21, motor casing 21 inside can be provided with the piston 22 of at least two coaxial arrangement, and the volume ratio of the oil hydraulic motor 2 of this structure is less; Enough big moment of torsion is provided ensuring to generator 3; Simultaneously, for simplified structure design with reduce processing cost, the axis coaxle at the eccentric position that two row pistons are matched.
For further reducing the centrifugal force that eccentric position produces, on eccentric part, can be designed with along the different through hole of its axial diameter, usually, the gyration center through-hole diameter away from eccentric shaft is big more more.
Can adopt sealed member 32 to carry out mechanical seal between the connection of part interior (between high-pressure chamber and the low pressure cavity) such as the oil hydraulic pump 1 among above-mentioned each embodiment in the hydraulic pressure speedup unit, oil hydraulic motor 2, generator 3, casing and parts; Sealed member 32 can be provided with seal ring or dust ring etc.; Prevent the mobile each other or external dust of hydraulic oil in the inner different chamber, the entering of rainwater, the working life of improving each component.
Oil hydraulic pump 1 among above-mentioned each embodiment can be high-pressure large-displacement oil hydraulic pump 1, and oil hydraulic motor 2 is the little displacement hydraulic motor 2 of high pressure.
Additionally, the eccentric shaft that each oil hydraulic pump 1 is installed in above-mentioned each mode of execution can also offer mounting hole along its axial position, can also be provided with hollow tubular 31 in the mounting hole, is convenient to electric wire arrangement.
Need to prove; Level used herein, the noun of locality such as vertical, left and right; For being directed against speeder in position shown in Fig. 2 to Fig. 4; Just in order to express easily, it will be understood by those skilled in the art that the noun of locality used herein should not limit protection scope of the present invention.
Except above-mentioned speeder; The present invention also provides a kind of wind power generating set that comprises above-mentioned speeder; Comprise wind wheel, generator 3 and be connected in wind wheel and generator 3 between speeder; Because above-mentioned speeder has above-mentioned technique effect, the wind power generating set with above-mentioned speeder also should have the corresponding techniques effect.
The structure of other each several parts of above-mentioned wind power generating set please refer to existing technology, and this paper repeats no more.
More than a kind of wind power generating set provided by the present invention and speeder thereof have been carried out detailed introduction.Used concrete example among this paper principle of the present invention and mode of execution are set forth, above embodiment's explanation just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (10)
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| CN201110424972XA CN102562481A (en) | 2011-12-16 | 2011-12-16 | Speed increasing device and wind generating set |
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| CN201110424972XA CN102562481A (en) | 2011-12-16 | 2011-12-16 | Speed increasing device and wind generating set |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606435A (en) * | 2012-03-30 | 2012-07-25 | 三一电气有限责任公司 | Wind generating set and hydraulic pump aggregate thereof |
| CN104358661A (en) * | 2014-11-17 | 2015-02-18 | 四川川润液压润滑设备有限公司 | Wind power generator |
| CN104481809A (en) * | 2014-11-17 | 2015-04-01 | 四川川润液压润滑设备有限公司 | Flow division type wind power generation device |
| CN105971981A (en) * | 2016-06-15 | 2016-09-28 | 三重型能源装备有限公司 | Hydraulic power mechanism and hydraulic wind power generator |
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| CN105971981B (en) * | 2016-06-15 | 2018-07-17 | 三一重型能源装备有限公司 | Hydraulic power mechanism and fluid pressure type wind-driven generator |
| CN109386434A (en) * | 2018-11-22 | 2019-02-26 | 明阳智慧能源集团股份公司 | A kind of compact semi-direct driving wind electrical gearbox multiaxis power dividing drive mechanism |
| CN109386434B (en) * | 2018-11-22 | 2024-03-26 | 明阳智慧能源集团股份公司 | Compact semi-direct-drive wind power gear box multi-shaft power split transmission structure |
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Application publication date: 20120711 |